12322021000 has 64 divisors (see below), whose sum is σ = 28850094000. Its totient is φ = 4925977600.

The previous prime is 12322020899. The next prime is 12322021007. The reversal of 12322021000 is 12022321.

It can be written as a sum of positive squares in 8 ways, for example, as 1992551044 + 10329469956 = 44638^2 + 101634^2 .

It is not an unprimeable number, because it can be changed into a prime (12322021007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3087006 + ... + 3090994.

Almost surely, 2^12322021000 is an apocalyptic number.

12322021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12322021000 is an abundant number, since it is smaller than the sum of its proper divisors (16528073000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12322021000 is a wasteful number, since it uses less digits than its factorization.

12322021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7099 (or 7085 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12322021000 its reverse (12022321), we get a palindrome (12334043321).

The spelling of 12322021000 in words is "twelve billion, three hundred twenty-two million, twenty-one thousand".